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Basic Information
| CAS No.: | 693-33-4 |
|---|---|
| Name: | HEXADECYLBETAINE |
| Molecular Structure: | |
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| Formula: | C20H41 N O2 |
| Molecular Weight: | 327.551 |
| Synonyms: | (Carboxymethyl)hexadecyldimethylammoniumhydroxide, inner salt (7CI); 1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-,hydroxide, inner salt; Ammonium, (carboxymethyl)hexadecyldimethyl-, hydroxide,inner salt (8CI); Amphosol CB; Amphosol CDB; CB 1-16; Cetyl betaine; ColatericBE 16; Detaine PB; Dimethylhexadecyl betaine; Hexadecylbetaine; Hexadecyldimethylbetaine;Lonzaine 16S; Lonzaine 16SP; N,N-Dimethyl-N-hexadecylaminoacetic acid;N-Cetyl-N,N-dimethylaminomethane carboxylate inner salt;N-Cetyl-N,N-dimethylglycine inner salt; N-Palmityl-N,N-dimethylaminoacetatebetaine; Product HDN |
| Density: | 0.9732 (rough estimate) |
| Boiling Point: | 465.41°C (rough estimate) |
| Solubility: | 444.8g/L at 25℃ |
| Safety: | A poison by intraperitoneal route. Moderately toxic by ingestion. When heated to decomposition it emits toxic vapors of NOx. |
| PSA: | 49.36000 |
| LogP: | 5.54030 |
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Synthetic route
- 112-69-6
N,N-dimethylhexadecylamine
- 3926-62-3
sodium monochloroacetic acid
- 693-33-4
(N-hexadecyl-N,N-dimethylammonio)acetate
Conditions
| Conditions | Yield |
|---|---|
| With ethanol at 100℃; | |
| In ethanol Heating; | |
| In ethanol; acetonitrile for 240h; Heating; |
- 5466-51-3
carboxymethyl-hexadecyl-dimethyl-ammonium; bromide
- 693-33-4
(N-hexadecyl-N,N-dimethylammonio)acetate
Conditions
| Conditions | Yield |
|---|---|
| With silver carbonate |
- 74729-09-2
methyl N-hexadecyl-N,N-dimethylglycinate chloride
A
- 67-56-1
methanol
B
- 693-33-4
(N-hexadecyl-N,N-dimethylammonio)acetate
Conditions
| Conditions | Yield |
|---|---|
| With sodium hydroxide; lithium chloride In water at 25℃; Rate constant; other salts, MTACl or CTACl wer used; |
Conditions
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 2: aq. ethanol / Heating View Scheme |
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HEXADECYLBETAINE
Chemistry
CETYL BETAINE's Molecular formula: C21H43NO2
CETYL BETAINE's Molar mass: 341.57162
EINECS: 211-748-4
Synonyms: HEXADECYLBETAINE;2-(hexadecyl-dimethyl-ammonio)acetate;(carboxylatomethyl)hexadecyldimethylammonium;1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt;Palmityldimethylbetaine;N,N-Dimethyl-N-hexadecylbetaine;2-(Hexadecyldimethylammonio)acetic acid;Cetyl Dimethyl Betaine
CETYL BETAINE's Molar mass: 341.57162
EINECS: 211-748-4
Synonyms: HEXADECYLBETAINE;2-(hexadecyl-dimethyl-ammonio)acetate;(carboxylatomethyl)hexadecyldimethylammonium;1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt;Palmityldimethylbetaine;N,N-Dimethyl-N-hexadecylbetaine;2-(Hexadecyldimethylammonio)acetic acid;Cetyl Dimethyl Betaine
Uses
CETYL BETAINE can used as foam stabilizer, thickener for shampoos.
Toxicity Data With Reference
| 1. | orl-rat LD50:1620 mg/kg | FAATDF Fundamental and Applied Toxicology. 16 (1991),41. | ||
| 2. | ipr-rat LD50:150 mg/kg | FAATDF Fundamental and Applied Toxicology. 16 (1991),41. |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
A poison by intraperitoneal route. Moderately toxic by ingestion. When heated to decomposition it emits toxic vapors of NOx.